England boss Fabio Capello believes his side can improve by 20% on their efforts in his first game in charge.

The Italian was satisfied with his players' attitudes in the 2-1 win over Switzerland, but said England need an extra edge to become world-beaters.

"Against Switzerland what I asked over three days in terms of movement and schemes was performed at 80%," he said.

"The England players will have to do what I ask of them. But I've found the players well-disposed and eager."

The former Roma, AC Milan and Real Madrid manager - who began his reign as England boss with the win at Wembley earlier this month - has a reputation as a strict disciplinarian.

And the 61-year-old is committed to applying the same principles which have brought him unparalleled success throughout his managerial career with England

When asked about his approach to turn his team into world-beaters, Capello said: "Disciplined on the pitch, with good movement as a team, and at the same time capable of stressing the qualities and abilities of each individual player.